udev rule for custom driver

[Justin Clacherty <justin@redfish-group.com>]

Hi,

I've been trying to get a udev rule to automatically create the /dev 
entries for the custom spi driver I've written for my board but am 
having no luck.  I've created the file /etc/udev/rules.d/10-spi.rules 
which contains the following line:

SUBSYSTEM="spi", SYSFS{modalias}="nexus_spi", NAME="nspi%n"

If I run udevmonitor and do a udev trigger I see the following line in 
the output:

UEVENT[1166449657.257561] add@/devices/platform/pxa2xx-spi.1/spi1.0

Running udevinfo on /devices/platform/pxa2xx-spi.1/spi1.0 gives:

  looking at device '/devices/platform/pxa2xx-spi.1/spi1.0':
    KERNEL="spi1.0"
    SUBSYSTEM="spi"
    SYSFS{modalias}="nexus_spi"

  looking at parent device '/devices/platform/pxa2xx-spi.1':
    ID="pxa2xx-spi.1"
    BUS="platform"
    DRIVER="pxa2xx-spi"
    SYSFS{modalias}="pxa2xx-spi"

  looking at parent device '/devices/platform':
    ID="platform"
    BUS=""
    DRIVER=""

Running udevtest on the sysfs tree gives the following output:

main: looking at device '/devices/platform/pxa2xx-spi.1/spi1.0' from 
subsystem 'spi'
main: run: 'socket:/org/kernel/udev/monitor'

Obviously I've missed something here, can anyone point to the problem?  
Do I need to add something to my driver for this to work or is my udev 
setup at fault?

Regards,
Justin.

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